medelyndanais9 medelyndanais9

14-04-2020
Mathematics

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[tex]\frac{1}{7}d= -3[/tex]

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alyssa29464 alyssa29464

14-04-2020

d = -21

multiply both sides by 7
1/7d (7) = -3 (7)

reduce with greatest common factor
d = 7(-3)

change signs
d = -7(3)

solve
d=-21

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